Radon concentrations in coal mines of Baluchistan, Pakistan

被引：41

作者：

Qureshi, AA ^{[1
]}

Kakar, DM ^{[1
]}

Akram, M ^{[1
]}

Khattak, NU ^{[1
]}

Tufail, M ^{[1
]}

Mehmood, K ^{[1
]}

Jamil, K ^{[1
]}

Khan, HA ^{[1
]}

机构：

[1] PINSTECH, Radiat Phys Div, Islamabad, Pakistan

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2000年 / 48卷 / 02期

关键词：

radioactivity; radon; track etching; dosimetry; health hazards; radiation protection; working level;

D O I：

10.1016/S0265-931X(99)00065-X

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Prolonged exposure to radon, the largest source (69%) of natural radioactivity, may cause lung cancer and bronchial tissue damage. So monitoring of radon at places of high radioactivity and in underground mines is important to assess the radiological hazards to occupational workers. For these reasons radon measurements were carried out in some coal mines of Baluchistan, Pakistan. The measurements were based upon passive detection of radon using CN-85 track detectors in Box Type Dosimeters. The radon concentration varied from 121 to 408 Bq m(-3) in the mines under study. The computed radon dose varied from 1.38 to 4.67 mSv yr(-1) with an average of 2.19 +/- 0.5 mSv yr(-1). These coal mines have been found to be safe from radon-related health hazards. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：203 / 209

页数：7

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